The MASH toolkit brings a powerful suite of procedural animation tools into Maya 2016. Procedural methodologies allow for nonlinear play and experimentation, with control networks instead of traditional keyframes. With sophisticated tools for replication, animation, controlled randomness, and instancing, MASH opens up a vast new territory for motion graphics and visual effects creation. From data visualization to 3D type, to HUD layouts and arrays of geometric objects, Mash provides a powerful, intuitive, and engaging way to create procedural animation systems directly in Maya. 

Source: https://www.linkedin.com/learning/maya-motion-graphics-workflow-with-mash